But over time, there are more and more plot details leaking out in advance of major blockbuster releases.
Internet reportage is one thing, but toys are also built in from the pre-production level onwards.
An inarguable turning point in the relationship between merchandisers and film production though was the promotion ofBatman Returns.
Moviesin 2014, the gist of director Tim Burtons account was I think I upset McDonalds.
Then again, its not a free-for-all.